That lyric is most afraid of seeing the traces of rain on your face.

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Some lyrics for you.

I am most afraid of seeing the traces of rain on your face.

Wet my heart and fall into my hands gently.

Like the whole winter.

Condense memories into ice

I'm afraid many promises are too late.

What is left is only the trace after the rain.

Love is when raindrops fall into your eyes, but you can't see clearly.

Mottled my footprints.

Tears that will never disappear